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vicapow/gist:3783547

Created September 25, 2012 18:21
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gistfile1.txt
> !!f
ReferenceError: f is not defined
at repl:1:4
at REPLServer.self.eval (repl.js:111:21)
at Interface.<anonymous> (repl.js:250:12)
at Interface.EventEmitter.emit (events.js:88:17)
at Interface._onLine (readline.js:199:10)
at Interface._line (readline.js:517:8)
at Interface._ttyWrite (readline.js:735:14)
at ReadStream.onkeypress (readline.js:98:10)
at ReadStream.EventEmitter.emit (events.js:115:20)
at emitKey (readline.js:1057:12)
> var f = undefined
undefined
> !!f
false
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